Penumbra (PEN) CFO sells 2,432 shares under Rule 10b5-1 plan

Rhea-AI Filing Summary

Penumbra Inc’s chief financial officer, Maggie Yuen, sold 2,432 shares of common stock in an open-market transaction at $342.30 per share. The sale was carried out under her Rule 10b5-1 trading plan, which pre-arranges trades. After this transaction, she directly owns 18,353 shares, and a portion of these shares is subject to vesting.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Yuen Maggie

(Last) (First) (Middle)

ONE PENUMBRA PLACE

(Street)

ALAMEDA CA 94502

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Penumbra Inc [ PEN ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Financial Officer

3. Date of Earliest Transaction (Month/Day/Year)
03/02/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/02/2026		S(1)		2,432	D	$342.3	18,353(2)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan.

2. A portion of these shares is subject to vesting.

Remarks:

	/s/ Johanna Roberts, as attorney-in-fact for Maggie Yuen	03/04/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did Penumbra (PEN) disclose for Maggie Yuen?

Penumbra reported that CFO Maggie Yuen sold 2,432 shares of common stock. The sale was an open-market transaction executed under her Rule 10b5-1 trading plan, as disclosed in the Form 4 insider filing.

How many Penumbra (PEN) shares did the CFO sell and at what price?

Maggie Yuen sold 2,432 shares of Penumbra common stock at $342.30 per share. This was an open-market sale reported as a Form 4 transaction with the SEC for transparency on insider trading activity.

How many Penumbra (PEN) shares does CFO Maggie Yuen hold after the sale?

Following the reported sale, Maggie Yuen directly owns 18,353 shares of Penumbra common stock. The filing also notes that a portion of these remaining shares is subject to vesting conditions over time.

Was the Penumbra (PEN) CFO’s stock sale under a Rule 10b5-1 plan?

Yes, the Form 4 states the sales were effected under Maggie Yuen’s Rule 10b5-1 trading plan. Such plans allow pre-arranged stock transactions according to preset instructions, helping insiders trade shares on a scheduled basis.

What type of transaction did the Penumbra (PEN) Form 4 report?

The Form 4 reports an open-market sale of common stock by CFO Maggie Yuen. The transaction is coded as “S,” described as a sale in the open market or private transaction, and is categorized as a non-derivative security trade.

Is the Penumbra (PEN) CFO’s ownership direct or indirect after this transaction?

The filing classifies Maggie Yuen’s post-transaction ownership of 18,353 shares as direct. The ownership code is listed as “D,” indicating direct ownership rather than shares held through an intermediary entity or indirect arrangement.